4/7 KINDLING AND PAPER FOODS--FRUITS AND VEGETABLES 56 VIII. OUR DRINK 69 Filling the Boiler of the Body-Engine 69 Where our Drinking Water Comes from 72 Causes and Dangers of Polluted Water 75 Methods of Obtaining Pure Water 81 Home Methods of Purifying Water 87 X.BEVERAGES, ALCOHOL, AND TOBACCO 89 Alcohol 93 Tobacco 103 XI. THE HEART-PUMP AND ITS PIPE-LINE SYSTEM 108 The Blood Vessels 108 The Heart 115 XII. THE CARE OF THE HEART-PUMP AND ITS PIPE LINES 120 XIII. |